Monthly Immunization Table

To track progress toward achieving the goals of the Childhood
Immunization Initiative (CII), CDC publishes monthly a tabular
summary of the number of cases of all diseases preventable by
routine childhood vaccination reported during the previous month
and year-to-date (provisional data) (Table_1). In addition, the
table
compares provisional data with final data for the previous year and
highlights the number of reported cases among children aged less
than or equal to 5 years, who are the primary focus of CII. Data in
the table are derived from CDC's National Notifiable Diseases
Surveillance System. Table_1Note: To print large tables and graphs users may have to change their printer settings to landscape and use a small font size.

Number of reported cases of diseases preventable by routine childhood vaccination
-- United States,, February 1994 and 1993-1994 *
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No. cases among
No. cases Total cases children aged <5 years +
February -------------- ------------------------
Disease 1994 1993 1994 1993 1994
--------------------------------------------------------------------------------------
Congenital rubella
syndrome (CRS) 2 2 2 1 2
Diphtheria 0 0 0 0 0
Haemophilus influenzae & 91 200 168 71 50
Hepatitis B @ 883 1636 1540 12 33
Measles 28 52 34 22 7
Mumps 111 239 179 53 20
Pertussis 299 472 513 255 308
Poliomyelitis, paralytic ** -- -- -- -- --
Rubella 34 21 37 7 4
Tetanus 2 2 3 0 0
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* Data for 1993 are final and for 1994, provisional.
+ For 1993 and 1994, age data were available for 85% or more cases, except for 1993 CRS,
which were available for 50% of cases, and 1994 pertussis and tetanus, which were available
for 84% and 67% of cases, respectively.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System.
@ Because most hepatitis B virus infections among infants and children aged <5 years are
asymptomatic (although likely to become chronic), acute disease surveillance does not
reflect the incidence of this problem in this age group or the effectiveness of hepatitis B vac-
cination in infants.
** No cases of suspected poliomyelitis have been reported in 1994; three cases of suspected
poliomyelitis have been reported in 1993; four of the five suspected cases with onset in
1992 were confirmed; the confirmed cases were vaccine associated.
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